There have been some people that have been able to make a stiletto 2 work with a subx1, but I wouldn't suggest it. There have been some catastrophic fails shown on other forums where the subx1 port breaks off inside the sl2 ruining both the boombox and the stiletto. I would suggest getting the correct boombox for the SL2. It's called the SLBB2. Here is a link to the product: http://www.tss-radio.com/sirius-stil...b2-p-5625.html